<body>
  <!-- <button onclick="_open()">打开新窗口</button>
  <button onclick="ref()">刷新</button>
  <button onclick="jump()">跳转页面</button> -->
  <button onclick="_forward()">前进</button>
  <button onclick="_back()">后退</button>
  <button onclick="_go()">跳转到具体页面</button>
  <input type="text" id="name" />
  <script></script>
  <script src="../js/bom-demo.js"></script>
</body>
